refactor: improve specialization card layout and unify chat screen header and navigation with home screen components.

lib/features/home/presentation/screens/home_screen.dart

@@ -165,6 +165,8 @@ class _HomeScreenState extends ConsumerState<HomeScreen> {
             context.push('/login');
             return;
           }
+          context.push('/profile');
+          return;
         }
         setState(() => _selectedIndex = index);
       },